This is not related HolographicShell bug but I also find another issue with win 11 and reported to the feedback hub https://aka.ms/AAi8717
To check GPU usages of apps, please do the steps below
- Open task manger (ctrl shift esc)
- Click processes
- Right click on any column title
- Select GPU
Now you can see gpu usages and can find another issues.
To see the performance issue that I am facing:
- Open the task manager
- Launch msfs in 2d mode
- While flying in 2d, start vr mode
- After a few seconds, stop vr mode
- Check task manager especially “desktop window manager”
It is using 99% of gpu and this is killing everything until you switch back to the vr mode. I wasn’t aware this until I made visible the GPU column in taskbar.
For this issue I formatted my pc then made a clean install, updated everything but no luck. Maybe this can also effect yours performance. This is a related topic: https://forums.flightsimulator.com/t/high-gpu-with-desktop-window-manager/509094